Carriage for type-writers.



No. 680,32l. Patented Aug. l3, l9fll.

- W. FABER.

CARRIAGE FOR TYPE WRITERS.

I (Application filed Mar, 6, 1901.) (No Model.)

WMESSES:

IUDRNEYS v Tm: "on! a PET! w. PHUIO-LITNG. was" New: I: c

UNITED STATES PATENT 1 OFFICE WILHELM FABER, OF BERLIN-WESTEND, GERMANY.

CARRIAGE FOR TYPE-WRITERS.

SPECIFICATION forming part of Letters Patent NO. 680,321 dated. August 13, 1901. Application filed March 6, 1901. Serial No. 50j056| No model.)

To all whom zit may concern:

Be it known that I, WiLHELM FABER, pastor, a subject of the King of Prussia, Emperor of Germany, residing in Kirschenallee 12, Berlin-WVestend, Germany, have invented certain new and useful Improvements in Electric Printing-Machines, of which the following is a specification.

The present invention relates to improvements in electric printing-machines as set forth in my application for Letters Patent, Serial No. 39,475, of September 11, 1900. The type-bars there described are formed in one piece and operated directly by means of bobbins. In consequence of such arrangement, however, it is unavoidable that each time a type through continued use becomes worn and has to be replaced by a new one the whole type-bar must be removed. This involves relatively considerable expense and also causes much inconvenience. A further difficulty with the machine referred to consists in the adjustment of the upper cap carrying the bobbins relatively to the lower cap, serving principally as guide for the type-bars. All these defects are overcome by means of my new printing-machine forming the subject of the present application.

My new invention is illustrated by the accompanying drawing, in which the figure shows type-bars, bobbins, and cooperating parts partly in elevation and partly in verti cal section.

In this new machine the type-bars 1 do not pass through the calotte 2 and bobbins at, but terminate just above the dome-guide 3,where they are provided with heads 50, forming abutments for spiral springs 51, which replace the spiral springs 6 of the machine described in my prior application referred to. The type-bars proper, 1, are thus rendered extremely short, and the heads 50 are slightly hollowed for the purpose of receiving the lower ends of special pressing-bars 52; The upper ends of the latter project into the bobbins 4 and are provided with the core-pieces 5, similar to those which in the machine forming the subject of my previous application referred to were located directly on the upper ends of the type-bars 1..

My new construction of the machine operates in all essentials quite the same as that described in my prior application, with the difference only that on an electric current flowing through the bobbin-coils t the cores 5 first operate the bars 52 directly, pulling them down, these latter then operating so as to depress the bars 1 against the force of the springs 51-41. 6., the bars 52 operate upon the type-bars 1 with hammer action. If new a worn-out type 53 is to be replaced by a new one, it is merely necessary to withdraw from below the guide 3 the short bar 1 of the type in question. This can be readily done after removing the bar-head 50, which is screwed or otherwise fastened, with capability of easy removal, to its bar.

The adjustment of the calotte 2 relatively to the dome-guide 3 need not be so exact as was necessary with my former machine referred to. For even though the bobbins 4t should not be perfectly coaxial with the bars 1 the latter still have free play in their guide 3 and are certain of being struck by the descending bars 52, which is quite sufficient to insure printing by the type of the bar 1 which is struck.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In an electric printing-machine, a printing device comprising spring type-bars radiating from a central point, a guide-piece for said type-bars, hollowed heads secured to the upper ends of said type-bars, pressing-bars arranged coaxially above said type bars, a spherical calotte the center of which is the point of contact of a type and the printingsurface, located over said type-bars and guiding said pressing-bars, and bobbins supported by said calotte and receiving said pressingbars, in such manner that on a current passing through said bobbins the pressing-bars are temporarily drawn down, depressing said type-bars, all substantially as described.

Signed at Berlin this 20th day of February, 1901.

WILIIELM FABER.

Witnesses:

WOLDEMAR I-IAUPT, HENRY HASPER. 

